There was one in San Francisco that was behind an unmarked door. You could pass right by it and never know it was there. It was called the "No Name Bar" as I recall. My date and I flew to San Francisco and had dinner at a high-class joint....The Blue Fox I think it was. Then my date and I dropped by that bar which might have been in Sausalito. I was in my early 20's which was a very long time ago. It was dark and quiet and cool. I don't remember what we ordered. I think it might have been a mug of beer. It was so nifty!
The other bar I remember was in the San Fernando Valley and it was the bar part of a restaurant. I was meeting my accountant there for dinner. I waited for him in the lobby. He showed up and then we went to the bar and had a drink while we waited for a table. That's it! So I'm not personally knowledgeable about bars except how they are depicted in movies. I doubt they are like CHEERS. I think they're more like the bar in THE ICEMAN COMETH. Oh and of course the Wisconsites who fled out in droves to bars as the very first thing they wanted to do to assert their independence. Different strokes!
Oh wait! The best bar I ever went to was the MAI TAI Bar at the Royal Hawaiian Hotel on the sand on the beach at Waikiki. We flew to Honolulu for our son's graduation and had Mai Tais and coconut shrimp as the sun was setting. Beautiful sunset. Gentle warm breeze. Picture perfect! Best bar in the world in my opinion. Of course my opinion is limited to three bars in my life!